Question
The preposition after "inquiry" should be "about," not "on."
Also, "the above mentioned" what? It's not clear what "the above mentioned" is (needs a noun after this phrase), so it would be better to write exactly what is being asked about -- example: Thank you for your inquiry about your washing machine.
If you're asking about punctuation, there are no errors. It's just a bad sentence!
=)
Thank you for your inquiry on the above mentioned.
Is the above sentence correct?
Thank you for your advice.
Also, "the above mentioned" what? It's not clear what "the above mentioned" is (needs a noun after this phrase), so it would be better to write exactly what is being asked about -- example: Thank you for your inquiry about your washing machine.
If you're asking about punctuation, there are no errors. It's just a bad sentence!
=)
Thank you for your inquiry on the above mentioned.
Is the above sentence correct?
Thank you for your advice.